Wet pickup attachment for vacuum cleaners
US6517596B2 · kind B2 · utility
8Cited by
38References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Oct 5, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/03
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A wet pickup attachment for vacuum cleaners has a pair of independent float operated valves to close primary and secondary exhaust openings responsive to different water levels in a collection tank and thereby prevent aspiration of water into a vacuum cleaner that powers the attachment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.